diff --git a/compositingprefs.cpp b/compositingprefs.cpp
index be176eabe2..e50b4c7163 100644
--- a/compositingprefs.cpp
+++ b/compositingprefs.cpp
@@ -29,8 +29,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <KDE/KLocalizedString>
 #include <kdeversion.h>
 #include <ksharedconfig.h>
-#include <kstandarddirs.h>
 
+#include <QStandardPaths>
 #include <qprocess.h>
 
 
@@ -148,7 +148,7 @@ void CompositingPrefs::detect()
         // environment variable.
         // Direct rendering is preferred, since not all OpenGL extensions are
         // available with indirect rendering.
-        const QString opengl_test = KStandardDirs::findExe(QStringLiteral("kwin_opengl_test"));
+        const QString opengl_test = QStandardPaths::findExecutable(QStringLiteral("kwin_opengl_test"));
         if (QProcess::execute(opengl_test) != 0) {
             mEnableDirectRendering = false;
             setenv("LIBGL_ALWAYS_INDIRECT", "1", true);
diff --git a/data/update_default_rules.cpp b/data/update_default_rules.cpp
index c78b8caa3b..dff9fa41cc 100644
--- a/data/update_default_rules.cpp
+++ b/data/update_default_rules.cpp
@@ -24,11 +24,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <kconfiggroup.h>
 #include <kdebug.h>
 #include <kcomponentdata.h>
-#include <kstandarddirs.h>
 #include <kaboutdata.h>
 #include <kcmdlineargs.h>
 #include <kglobal.h>
 #include <QtDBus/QtDBus>
+#include <QtCore/QStandardPaths>
 
 int main( int argc, char* argv[] )
     {
@@ -38,7 +38,7 @@ int main( int argc, char* argv[] )
     KCmdLineArgs::init( argc, argv, &about );
     KComponentData inst( &about );
     Q_UNUSED( KGlobal::locale() ); // jump-start locales to get to translated descriptions
-    QString file = KStandardDirs::locate( "data", QString( "kwin/default_rules/%1" ).arg(argv[ 1 ] ));
+    QString file = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QString( "kwin/default_rules/%1" ).arg(argv[ 1 ] ));
     if( file.isEmpty())
         {
         kWarning(1212) << "File " << argv[ 1 ] << " not found!" ;
diff --git a/main.cpp b/main.cpp
index 0b6ff7ff23..28029dcae6 100644
--- a/main.cpp
+++ b/main.cpp
@@ -42,7 +42,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <QEvent>
 
 #include <kdialog.h>
-#include <kstandarddirs.h>
+#include <QStandardPaths>
 #include <kdebug.h>
 #include <kde_file.h>
 #include <QLabel>
@@ -179,7 +179,7 @@ public:
 
     void addWM(const QString& wm) {
         // TODO: Check if WM is installed
-        if (!KStandardDirs::findExe(wm).isEmpty())
+        if (!QStandardPaths::findExecutable(wm).isEmpty())
             wmList->addItem(wm);
     }
     QString selectedWM() const {